For many things, the 3D viewport cursor designed into Blender is quite satisfactory. However, if one has a white background, as for example, if one is using a background image, the white-cursor-with-black-tips can sometimes become difficult to locate.

It would be quite useful, at least to this user, if the cursor could be made configurable, so that, if I am using a white background image, I could change the cursor to, say, a blue cross with orange tips, or ....